Google Quantitative Analyst interview questions

Was contacted by a recruiter because she saw my LinkedIn profile. Had a 15 minute conversation with her where she told me about the interview process. I set up a google hangout technical interview 3 weeks out so I could have time to prepare. The technical interviewer was a really cool nice guy. I just finished that interview and don't know if they'll ask for to come over for on-site interviews. He said he recommends that for about 20-25% of the people he interviews. I feel like I did alright. We'll see.